This is our first year owning a pool. We got an intex 18x52 with the sand filter and swg, thinking that it would be 'maintenance free'. It has been great for the last two months, but going downhill quickly in the last two weeks. I think it started because our salt levels got way off. Mother low salt indicator kept coming on so my husband would just keep adding more salt. We could tell by the feel of the water that there was pleanty of salt, so I used google and found someone who shared that sometimes the salt detector gets crusted over with salt and needs to be cleaned by soaking in vinegar. We did that, and of course as expected, then the 'high salt' warning came on. My hubby tried letting out some of the water and refilling it, but he thinks it's still too high in salt. Algae started to grow, so we brushed/vacuumed and it looked ok. We went away for a three day weekend and came back to a green pool. My husband is convinced that it's low on chlorine, and that if he drains more water out, and gets the salt level back on track and boosts it, that it'll start clearing up. "Because the user guide says that you shouldn't need to add anything else, that the swg keeps everything in check." I'm not so optimistic. I think we need to get a test kit and start using the tfp method. All we have is the little test strip that came with the pool. The chlorine level is .5 and the fc and ph are at the "worst/highest" levels available on the test strip. (8.4 for ph and 240 for ta)
So tell me, is there any chance that draining some of the water, refilling, and getting the salt levels back in place so that it's generating the right amount of chlorine will turn our pool from green back to blue/clear?